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industrial mechanics
hydraulic prinicples
| Question | Answer |
|---|---|
| torque | twist and rotational force of a shaft |
| break away torque | initial energy to get a non-moving load to turn |
| starting torque | energy to get a load turning after it has been broken from a stand still |
| running torque | energy that a motor develops to keep a load turning |
| velocity | a fluid travels a certain distance in a specified time |
| acceleration | increase in speed |
| flow rate | volume of fluid flow per minute |
| mechanical advantage | ratio of the output force to the input force of a device |
| Pascal's Law | pressure exerted on an enclosed fluid that is transmitted undiminished, in every direction |
| energy | ability to do work |
| static energy | ability of a fluid to do work |
| total energy | measure of a fluids ability to do work |
| kinetic energy | energy of motion |
| heat energy | ability to do work using heat stored |
| pressure energy | ability to do work through the pressure of a fluid |
| efficiency | a measure of a component or system |
| power | rate of doing work |
| work | energy used when a force is used over a distance |
| hydraulics | branch of science that deals with fluids at rest or moving |
| hydrostatics | study of liquids at rest and forces acting on them |
| equilibrium | balance of all conditions |
| hydrodynamics | study of a solid body and the forces on them exerted by a liquid |
| non-positive displacement pump | a pump that is not sealed between its inlet and outlet |
| centrifugal force | outward force produced as an object rotates |
| fluid | substance that tends to flow |
| liquid | a fluid that can flow easily and take any shape |
| gas | a fluid that has no independent shape or volume |
| force | an interaction that tends to change the state of rest |
| atmospheric pressure | force applied by the weight of the atmosphere |
| mercury barometer | an instrument that uses mercury to measure atmospheric pressure |
| vacuum | pressure lower than atmospheric pressure |
| gauge pressure | pressure above atmospheric pressure |
| absolute pressure | pressure above a perfect vacuum |
| area of force and pressure | all the basis of a hydraulic system |
| head | the difference in the level of a fluid |
| head pressure | pressure created by a fluid stacked on top of itself |
| static head pressure | pressure created by the weight of a fluid |
| dynamic head | head fluid in motion |
| dynamic head pressure | pressure and velocity produced by a fluid in motion |
| lift | height at which atmospheric pressure forces a fluid above the supply sources elevation |
| static lift | height to which atmospheric pressure causes a column of fluid to rise above its own supply to restore equilibrium |
| dynamic lift | lift of fluid in motion |
| total column | fluid head + lift |
| static total column | static head + static lift |
| fluid flow | movement of fluid |
| pressure drop | pressure differential between upstream and downstream |
| viscosity | how fast a fluid flows |
| Sabolt Viscometer | an instrument to measure viscosity |
| viscosity index | a scale used to show the magnitude of viscosity |
| slippage | internal leakage of fluid |
| gear pump | non-positive displacement pump |
| displacement | volume of fluid moved during each revolution |
| positive displacement pump | a pump that delivers a definite volume of fluid |
| volumetric efficiency | percent of actual pump output |
| volume | size of a 3 dimensional object |
| capacity | ability to hold or contain something |
Created by:
amygilstrap7
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